In a question paper there are two parts A and B . Part A contains 6 questions and part B contains 7 questions . in how many ways a student can select 4 questions in part A of which 2 questions are compulsory and 5 questions in part B of which 3 questions are compulsory ?????PLZZZ SOLVE THIS
I tried but it is fruitless

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  1. 4C2 x 4 C2 = 36

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    posted by Gonzalo
  2. How please explain

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  3. 10 question out of 13 question to answer

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